Assigitos to the ksbbihabd



G. M. KERRIHARD OILr BURNER Fi led Feb. 24,

l TRNE YS Patented Mar. 20, 1923.

UNITED STATES 1,449,007 PATENT OFFICE.

GEORGE MILLER KERRIHARD. 0F BED OAK, IOWA. ASSIGNOR TO THE KERRIHARDCOMPANY, OF RED OAK, IOWA, A CORPORATION OF IOWA.

011gl BURNER.

Application led February 24, 1922.

T o all ifi/m if 11i-ay conferir Be it. known that I. GEORGE M. linem-HARD, a eitizen ot' the United States. and a resident ot' Red Oak, inthe county of Montgomery and State of Iowa. have invented certain newand useful Improvements in Oil Burners` of which the following is aspecification.

My invention' relates to improvements in oil burners. and it eonsists inthe eomhinations. constructions and arrangements herein described andclaimed.

An object. of my invention is to provide an oil burner ot simplifiedeonstruetion which is adapted for use in furnaces of va rions knowntypes of construction in which eoal has heretofore heen used as a fuel,without any extensive rhangres. it' any. in the usual construction ofthe nrnaees being re uired.

further ohjeet of nl v invention is to provide a hurner of the eharaeterdeserihed with which the heavier and cheaper grades of oil. as well asthe lighter Igrades, may be used as aJ fuel with satisfaetory resultsand safety.

Uther ohjeets and advantages will appear in the following specificationund the novel features of the invention will he partieularly outlined inthe appended elaims.

Mv invention is illustrated in the airone panvinp; drawings. 'l'orniinrra part ot' this application. in whirh:

Fig. 1 is :i top plan view of the hurner with an upper sei-tion thereofremoved.

Fig. 2 is a seetion throup'h the burner along the line 2-2 ot Fig. 1.and showingiF the burner in position on the. grate of a furnace,

41.2 Fig. 3 is a ser'tion along the tine 'l-l ol Fi r. l. and i ig. 4 isa side elevation oi' a hui-ner nozzle rover ernlmdied in the invention.

ln carrying' out in v invention. l provide a. body portion l whiehcomprises a central portion 2. an outer ring portion 3 and inte gral lugportions 4 merging the ventral portion 2 and the outer ring 3 one intothe other and spaeinpv the outer ring;r from the ventral portion. Thecentral portion 2 has solistentially the shape ol' a disk formed with arontinuous npstzindingr flange 5 around its outer ed e and with :inopstandingr central luuner no'zlo or tip Hf The body portion prefer Ehlyis niade hy easting in a single. piece Serial No. 538,831.

and the outer ring portion 3 is spared from the ventral portion '2 hythe lugs l in sueh s manner to be eoneentrie therewith. whereby anannuler passage T is provided between the central portion 2 and theouter ring portion The central portion 2 is formed with the portionthereof extending between the flange 5 and the, burner tip 6 depressedas shown to define the hottom of a reservoir 8 which has a utility thatYwill he hereinafter set forth. The burner tip 6 projects above the levelof the flange 5 and is surrounded at the base thereof by steppedshoulders 9 and 10 respectively, formed at ditierent levels. Tho onterwall of the burner tip 6 tapers uniformly vfrom the shoulder 9 towardthe upper end thereof. A bore 1l. extenils axially of the burner tip Gand is merged it the lower end into a threaded eounterlxire .l2 openingthrough the lower fare of the ventral portion t2. The dist-barge orificeof the hore il at the upper end of the tip is detined hv intersertingslits 13 and 'I4 through the walls ot the tip at the extreme lippe.:lend of the latter.

'l'he ventral portion 2 is formed with a radiallyr extending enlargementor boss l5 provided with a llore 16 eommunieating with the, reservoir Sadjaeent to the upper end oi" the latter. 'lhe hore ltl is enlarged andthreaded adpieent to the endthereof opening through the lower fave ofthe eentrai portion i2. as at li', for connection with a drain pipo 1H.p

ring-shaped haltle meniher 19. also formed o a metal casting'. has theslm-pe illustrated to advantage in 'Fig 2. heing suhstantinllv Ueshapedin radial settion.. The hnllle member l5) rests upon the upper end ol'the outer ring portion il and is innintained thereon hy a rylindriealeasing memher 2li whieh ent-(impasses the outer ring portion il andprojects ahove tlu` latter. The hatlle nwinher Ill is thus supported inposition to over-hung the flange 5 and with the eonstrieted or inner endthereof depending' within the reservoir 8 helow the level of the flange5. r

rover 1l'or the. hurner tip eolnprises :i eydiinlriral niemher 21threadedly engaged at its upper end hv a rap 22 and being open :it itslower end. The tnhular member 21 is adapted to rest on theshoulder'ltlfwherehy the inner wall thereof will he spaced from 110 Theouter wall of thiI burner tip (i. Xotrhes 23 are provided in the lowerend of the tuhular member (l. Obviously. the tvlindrical member :ll andthe rap E22 may be formell integrally with each other, as by casting,:3nd provided with a ring (not shown) or thil like, Wherehy the burnernozzle rover ma be lifted from the body l'or leaning flurin;r theoprraion of the device, whith will be hereinafter ilenrriherl. withoutdeparting from th-l epirit and erope ol' the invention.

From the foregoing iienrription of the verioun parte of the device, theoperation thereof may be readilyY understood. The burner may heinstalled within a Furnace which me# designed to be a roal burningfurnace. Without any extensive rhanges or alterations in'theronstinrtion ol' the fun nare being requirei'l. The burner is plered inthe tirebox of the furnace in superimposed poeition on the g5 nte, rarebeing: tal-'ein the:` the bofly port-ion is so disposed `with trapt t othe grate that air is permitted to ima-lan; *freely thrriiugh the grateinto he en l- T. 1t je important that the burner be truly horizontal andto thi end. a plnraity of jurk sfrene'll depend from threaded openings2F through the lugs adjustable :supports which he grate bars lt will heuni t the inrit screws can be manipA t A feed tulle ihr inn-ner islevel. ni. l between the xgrate hars ard i if: the threadedeounterbi'zre lil. lt he understood that the feed tube 2T entends to asource of fuel supply (not shownl and that a fuel, surh as a Suitableoil. will he orreil along the tuhe 2T into the burner tig, il until-irpressure. lt will he iin-- loretviai- "o that suitable means` none heingi--lin=ih` eiii'h as ii needle valve. are pro- .iileii in the feed tube"ii 'for rontrolling" the llow uit" a liquid fur-l therethrough.

*When ihr luirnei' hm heen poeitioneil 1 grate hun ',ft. zz `uitahlerefractory mi, is riay. parked around the f. nnlirateiil nt to dotiertall currents of air upwardly through 2G into the annuler passage T.flinch ai," rurren'ts will be deflected downn'arfiljy hy the liatileineniher 19 upon the snreee o the oil or like fuel which has been fedthrough the notches E3 to the resrrwiir h. whirh serves as a Flainehaeiu.

woiint of the restrirted nature of the e iu-tween the cover and theburner fue oil passes through the notches 2B V:i H at a desired rate offlow. it is to he ohaferved at this point that the inner wall et the cap22 is formed to provide a ronoidai rhainber Qll, the axis of which is invertical elinelnent with the axis of the imi-ner nozzle and that thenotches 23 are spared for?. whereby the oil owing into the {iai-ne basinwiil be, fed to all parte of he rati the latter uniformly. lVhen thefuel passin; r into the basin has been ignited, as by placing a lightedpaper about the lower end of the hin-ner nozale, the downwardly directedair eurrentsf.inminging against the oil in the basin will promoterombustion and sui-h l'uel will he prartieally Completely ron- `eiuned.thereby ell'ertintP a great economy in the generation ol' a desiredamount of heat.

In the event that oil should ibe forced from the burner nozzle into thebasin 8 without being ignited` or in exress to the amount ronsulnm'l,miel] oil Will rollert in the basin and when the level of the passage 16has heen rearhed, will tlow through the latter and through the drainpipe 18, thereby apprising an operator that the burner is notfunrtii'nling in a desired manner. If desired. a euitahlr safetyAshuti-otl` valve of anjiV know o type ot' eonstluiotion, none beingshown, muy he operatively connected with the :lrain pipe tti and thefeed pipe QT and arranged to he operated automatically to out oil' thellon' of fuel through the feed pipe 2i' when surh lluid fuel is panningfrom the reservoir H through the drain pipe 18.

1. A burner romprising a body portion consisting of n, eentral portion,an outer ring; portion, and lug portions connecting the ventral portionand the ring portion together in heh a nninner as to Space the outerring portion from the central portion. said central portion beingprovided with a verticallyv extendingfuel nozzle, and meanssuperimposed. upon said outer ring portion and overhanging the centralportion for drfleetingair currents passing between said. central portionand seid outer ring portion toward the portion of the body surroundingthe liaise ot eaitl nozzle.

2. A burner romprising a body portion having a, central portion ot'substantially ril-ruler ronforinatitni, said central portion having an'opstanding marginal Harige, and d. rertiral fue] nozzle projeotin fromthe renter thereof above the level o the Harige, an outer ring memberofgreater diameter than the rent-ral portion, and lugs joining theCentral portion to the outer ring portion and maintaining the latter inspaced con centric relation to the former. and means for directingeut-rents of air. passing between said central portion and said outerring portion downwardly toward the surface of the body surrounding thebase of the fuel nozzle. i

3. A burner comprising a body `redp of a single resting, said bodyelonsisting f a cen-YP tral portion of circular conformation, an outerringr portion of greater diameter than the central portion, and radiallyextending lugs integral with both the central port-ion and the outerring portion and merging one into the other, whereby said Centralportion and said outer ring portion are located in spaced concentricrelation and an annular passage is defined therebetween` said centralportion having a continuous opstanding marginal flange and a verticalfuel nozzle rejecting from the center thereof above the evel of theflange, thereby defining'a reservoir in the upper face of the centralportion, Said flange having a radialV enlarge ment provided with :1 borecommunicating with'the reservoir adjacent to its upper end and o eningthrough thelower face of the 'centra portion.

4. A burner comprising a body made of a single casting, said bodyconsisting of a central portion of circular conformation, an, outerring, portion of greater diameter than the central portion, and radiallyextending lugs integral with both the central portion and the outer ringportion and merging one into the other,` whereby said central portion.and said outer ring portionare located in spaced concentric relation andan annular passage is defined there-between, said central portion havinga continuous upstanding marginal flange and a vertical fuel nozzleprojecting from the center thereof 'above the level `of the flange,thereby defining a reservoir in the upper face of the central portion,said Harige having a radial enlargement provided with a borecommunicating;r with the reservoir adjacent to its upper end and open.ing through the lower face of the central portion` and adjustablesupporting members epending from said body portion for positioning saidbod-y portion horizontal when superimposed upon a'fixed support.

A burner comprising a body made of a single casting, said bodyconsisting of n, central portion of circular conformatioman outer ringportion of greater diameter than the central portion, radially extendinglugs integral with both the central portion and the outer ring portionand merging oneA into the other whereby said central portion and saidouter ring portion are located in spaced concentric relation and anannular passage is defined therebetween. said central portion having acontinuous opstanding marginal flange and a vertical fuel nozzleprojecting from the center thereof above the level of the flange,thercbv defining a reservoir in the upper face of the central portion.said flange having a radial enlargement provided with a borecommunicating with the reservoir adjacent to its upper end and openingthrough the lower face of the central portion. and a baffle memberresting upon said outer ring portion and overhanging said centralportion to depend below the level of said flange for diverting air currents downwardly into said reservoir.

G. A burner comprising :i body made of :i single casting. said bodyconsisting of aV cen tra] portion of ril-cular conforu'iation. an

-into said reservoir, and a 'a continuous p u outer ring portion ofgreater diameter than the central portion, radially extending lugsintegral Wi l both the'central portion and the outer r n portion andmerging one into the other hereby said central portion and said outering portion are located in spaced concentric relatipn and an annularpassage is defined therebetween. Said central portion having acontinuous upstanding marginal flange' and a vertical fuel nozzleprojecting from the center thereof above the lei'cl of the flange,thereby defining a reservoir in the upper face of the central portion,said Hango having a radial enlargement provided with a borecommunicating with the reservoir adjacent to its upper end and openingthrough the lower` face of the central portion, a baille member restingupon said outer ring portion and overhanging said central portion todepend -below the'level of said flange for diverting air currentsdownwardly into said reservoir, and means encompassing said burner tipand spaced therefrom for controlling the flow of the fuel from saidnozzle into Vsaid reservoir.

V7. A burner comprising a body made of a single casting', said bodyconsisting of a central portion of circular conformation, an outer ringrportion of greater diameter than the central portion, radially extendinglugs integral with `both the central portion and the outer ring portionand merging7 one into the other whereby said central portion and saidoutcrring portion are located in spaced lconcentric relation and anannular passage -is defined therebetween, said central portion having acontinuous upstanding marginal flangeand a vertical fuel nozzleprojecting from the center thereof above the level of the flange,thereby defining a reservoir in the upper face of the central portion,said flange having,r a radial enlargement provided with a borecommunicating with the reservoir adjacent to its upper end and openingthrough the lower face of .the central portion, a baille member restingupon said outer ring portion and overhanging said central portion todepend below the level of said flange for diverting air currents downiva rdly cover encompassing said tip and resting upon the upper face ofthe central portion, said cover being closed at its upper end and beingprovided with notches in its lower end through which the fuel may passinto said reservoir.

8. A burner comprising a body having a central portion of circularconformation` an outer ring portion` and radial portions connecting thecentral portion and the outer ring portion and maintaining theseportions in spaced concentric re ation, said central portion beingprovided with a fuel nozzle, upstandng from the center thereof and withstanding marginal flange.

Said fuel nozzle aving an axial bore formed at. its lon'er end forconnection withe fuel supply pipe. and being provided at its upper endwith u discharge orice defined by interseeting slits through the Wallsof the burner et the upper end thereof, the outer wall of seid burnertapering at the upper end thereof, a cover for said burner tip, seidcover being provided with notches at its lower end1 :ind a ring-shapedbaille member resting upon said outer ring portion and having :i portionthereof depending below the level of said fiunge within the spacedefined by said flange.

SP. A burner comprising a base having a central portion provided with acentral ver tically disposed fuel nozzcle therefrom and being formed toprovide-af fiarne basin on the upper -face of the central portion inencircling relation to the base of the nozzle, and means Vassociatedwith the base in concentric spaced relation to the central portion fordetiecting air currents passing upwardly around the edge of the baseinwardly and downwardly toward the base of the nozzle, said .centralportion being provided with a drainage bore communicating therewithabove the level of the bottom of the fiame basin.

GEORGE MILLER KERRlHARD.

u pstending L

